Hello, we are not detecting any known issues with our email servers at this moment. What device are you using to access your Cox emails (iMac, Windows, mobile device, etc)? What version of Outlook are you currently using to send and receive emails? Are you able to send and receive emails on myemail.cox.net, without any issues?
Here is a link that provides information regarding the incoming and outgoing settings:
www.cox.com/.../cox-email-server-settings.html
Going forward, all settings must use an SSL / TLS encryption, as this provides added security. -Kevin M. Cox Support Forum Moderator